SQL Server - How to Grant Read Access to ALL databases to a Login?

Question

I need to give a new login read access to all 300 databases on a server. How can I accomplish this without checking 300 checkboxes in the user mapping area?

Answer 1

You can use for example Cursor, like this :

USE master
GO

DECLARE @DatabaseName VARCHAR(32)   
DECLARE @SQL NVARCHAR(max)
DECLARE @User VARCHAR(64)
SET @User = '[SQL\srvSSISAcc]' --Your User

DECLARE Grant_Permission CURSOR LOCAL FOR
SELECT name FROM MASTER.dbo.sysdatabases
WHERE name NOT IN ('master','model','msdb','tempdb')  

OPEN Grant_Permission  
FETCH NEXT FROM Grant_Permission INTO @DatabaseName  
WHILE @@FETCH_STATUS = 0  
BEGIN  

    SELECT @SQL = 'USE '+ '[' + @DatabaseName + ']' +'; '+ 'CREATE USER ' + @User + 
    'FOR LOGIN ' + @User + '; EXEC sp_addrolemember N''db_datareader'', 
    ' + @User + '; EXEC sp_addrolemember N''db_datawriter'', ' + @User + ''

    EXEC sp_executesql @SQL
    PRINT @SQL

FETCH NEXT FROM Grant_Permission INTO @DatabaseName  
END  
CLOSE Grant_Permission  
DEALLOCATE Grant_Permission 

More info find in my post about this topic: http://www.pigeonsql.com/single-post/2016/12/23/Grant-User-Access-to-All-Databases